<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <title>章节和分节的编号是"第1节"，"1.1"，"1.2"等</title>
    <style>
        body {
            counter-reset: section;
        }

        h1 {
            counter-reset: subsection;
        }

        h1:before {
            counter-increment: section;
            content: "Section " counter(section) ". ";
        }

        h2:before {
            counter-increment: subsection;
            content: counter(section) "." counter(subsection) " ";
        }
    </style>
</head>

<body>

    <p><b>注意:</b> 仅当 !DOCTYPE已经定义 IE8支持 这个属性.</p>

    <h1>HTML tutorials</h1>
    <h2>HTML Tutorial</h2>
    <h2>XHTML Tutorial</h2>
    <h2>CSS Tutorial</h2>

    <h1>Scripting tutorials</h1>
    <h2>JavaScript</h2>
    <h2>VBScript</h2>

    <h1>XML tutorials</h1>
    <h2>XML</h2>
    <h2>XSL</h2>

</body>

</html>